19-2 音声の電子透かしを用いたデータ放送サービスの提案(第19部門 データ放送技術)

抄録

We have proposed a novel audio watermarking technology, which features nearly lossless embedding, robustness against lossy data compression or analogue conversion, and enables contactless asynchronous detection of embedded watermarks through speaker and microphone devices. Using this audio watermark technology, we propose an application for information broadcasting services, which features distributing digital information through traditional analogue broadcasting or recording infrastructures.